ADATA Ultimate SU650 960GB vs Kioxia Exceria SATA SSD 960GB

ADATAUltimate SU650 960GB960 GB · 520 MB/s · 450 MB/s · 560 TBWLeads on Endurance
KioxiaExceria SATA SSD 960GB960 GB · 555 MB/s · 540 MB/s · 240 TBWLeads on Sequential read
In short

At least one of these has no price the site currently tracks, so what follows weighs specifications alone.

SpecificationADATAUltimate SU650 960GBKioxiaExceria SATA SSD 960GB
Capacity (GB)960960
Sequential read (MB/s)520555better
Sequential write (MB/s)450540better
Current best price$323.88at Amazon.ca · captured 2026-09-12
Price per TB$337.38
Endurance (TBW)560better240
Warranty (years)33
DRAM cacheNo
NAND typetlc

How these two compare

Sequential throughput

ADATA Ultimate SU650 960GB reads at 520 MB/s and writes at 450 MB/s; Kioxia Exceria SATA SSD 960GB reads at 555 MB/s and writes at 540 MB/s. Both ride the SATA bus, which caps sequential transfer near 550 MB/s in either direction — the ceiling every SATA drive works against — so what more decisively separates them is sustained and random behaviour, the DRAM cache, and endurance.

Endurance

ADATA Ultimate SU650 960GB is rated for 560 TBW and Kioxia Exceria SATA SSD 960GB for 240 TBW — the total the maker warrants you can write over the drive's life. A typical desktop writes only a few terabytes a year, so either rating is many years of headroom; the figure matters mainly as a relative signal of how hard each is built to be driven.

DRAM cache

On the cache question: the catalog does not state whether ADATA Ultimate SU650 960GB carries a DRAM cache, and Kioxia Exceria SATA SSD 960GB is DRAM-less. The DRAM keeps the flash-translation table close, sparing a lookup on nearly every access; a drive without it leans on host memory or its own flash, which usually shows as slower sustained random writes rather than in the headline sequential numbers.

NAND and warranty

On the flash itself: ADATA Ultimate SU650 960GB's NAND is not stated, and Kioxia Exceria SATA SSD 960GB uses TLC. NAND tiers count bits per cell — more bits pack more capacity into the same silicon but shorten write endurance and slow sustained writes, which is why QLC sits below TLC on lasting performance even when the sequential numbers match. ADATA Ultimate SU650 960GB carries a 3-year warranty and Kioxia Exceria SATA SSD 960GB carries a 3-year warranty — the length the maker will stand behind the drive, and usually a proxy for the endurance it is rated to.

Which to buy

The site holds no current price for at least one of these, so it cannot call the buy on cost. Judge them on the specifications above — at the same capacity and interface, two drives usually part on things like the DRAM cache, the NAND tier, endurance and warranty, so weigh whichever of those the sections above report.

Common questions about this pair

Which is faster, ADATA Ultimate SU650 960GB or Kioxia Exceria SATA SSD 960GB?
ADATA Ultimate SU650 960GB reads at 520 MB/s and writes at 450 MB/s; Kioxia Exceria SATA SSD 960GB reads at 555 MB/s and writes at 540 MB/s. Both ride the SATA bus, which caps sequential transfer near 550 MB/s in either direction — the ceiling every SATA drive works against — so what more decisively separates them is sustained and random behaviour, the DRAM cache, and endurance.
Should you buy ADATA Ultimate SU650 960GB or Kioxia Exceria SATA SSD 960GB?
The site holds no current price for at least one of these, so it cannot call the buy on cost. Judge them on the specifications above — at the same capacity and interface, two drives usually part on things like the DRAM cache, the NAND tier, endurance and warranty, so weigh whichever of those the sections above report.
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